Has anyone experienced this? We are forced to use the non-Apple optimized Brother iPrint&Scan app. It works, but I would rather use the built in app, but it is no longer reliable and I can't keep uninstalling it and installing it, each time we need to use scanner. The printing functionality has always been working fine and it continue to work fine, including our iPhones etc, so no problem with that! it it just scanning that is annoying like this.